李梅溪
Sorry, please forgive my English! Lead carbonate is the only thing that we don't have. But we have calcium carbonate instead of it.
2024年11月6日 03:10
修正 · 1
Sorry, please forgive my English! Lead carbonate is the only thing that we don't have, but we have calcium carbonate instead.
2024年11月6日 10:05
想進步快一點嗎？
加入此學習社群，來試做免費的練習吧！
